diff --git a/release/src-rt/Makefile b/release/src-rt/Makefile
index 99370fe23..b56430437 100644
--- a/release/src-rt/Makefile
+++ b/release/src-rt/Makefile
@@ -70,7 +70,7 @@ export PATH := $(RELEASEDIR)/tools:$(SRCBASE)/ctools:$(PATH)
 #K3C/K3/SBRAC1900P/SBRAC3200P/R7000/R8000/R7900P/R8000P
 export MERLINR_NAME := RTACRH17
 export MERLINR_VER_MAJOR :=B
-export MERLINR_VER_MINOR :=5.1.3b
+export MERLINR_VER_MINOR :=5.1.3
 export MERLINR_VER := $(MERLINR_VER_MAJOR)$(MERLINR_VER_MINOR)
 export MERLINRVER := $(MERLINR_NAME)_$(MERLINR_VER)
 ifeq ($(MERLINR_NAME),RTACRH17)